From the answer:
I can guide you on how to restore your previous company file in QuickBooks, brianhawki .... Instead of using the standard Restore command, you can use the Restore Backup For Earlier QuickBooks Version utility.

From the answer:
yes QB 2015 was the first year that works on win10, you need to upgrade to 2019 if it still will not open the company data file, it may need to be stepped up, 2010 is 9 years old and the data base format has changed, have intuit data services try to